Speaker
Mr
Konstantin Sergeenko
(Michailovich)
Description
Study of turbulent pipe flows is extremely important because of its wide range of
applications. In the past decades, many fundamental theoretical and experimental studies on
wall-bounded flows have been performed: in the pipe, flat channel and boundary layer flow
geometries. However, the internal fluid dynamics in these regions still far from being
understood. Numerical simulation offers an opportunity to get detailed information on the flow
structure, which is difficult to obtain experimentally.
In this paper, the numerical simulation of turbulent heat transfer in a circular pipe was
performed in a wide range of Reynolds numbers using nonparametric MILES-method
CABARET on grids with an incomplete resolution of the turbulence spectrum, as well as with
the use of the STAR-CCM+ code in a LES-approximation. The calculation results was compared
with the DNS calculations by other authors found in literature, as well as with the RANScalculations
performed in the STAR-CCM+ code. The simulation showed a satisfactory accuracy
in determining average, rms and integral characteristics of the flow, and revealed drawbacks in
the existing model relations describing the local properties of turbulence. The authors have
proposed a thermal wall function, which might be implement in the RANS-approximations.
Country/Int. Organization
JSC «NIKIET», Moscow, Russia
Nuclear Safety Institute, Moscow, Russia
Primary author
Mr
Konstantin Sergeenko
(Michailovich)
Co-authors
Prof.
VASILY GOLOVIZNIN
(Michailovich)
Dr
VYACHESLAV GLOTOV
(Yurievich)
